Western Grassland Reserves interim management
... suffered similar declines around the world, and their conservation is a global challenge (Lunt 1991, Watkinson and Ormerod 2001, Williams et al. 2005). The Western Grassland Reserves will form a new grassland park, covering two large areas: around Mt Cottrell and north of Little River. They will pro ...
... suffered similar declines around the world, and their conservation is a global challenge (Lunt 1991, Watkinson and Ormerod 2001, Williams et al. 2005). The Western Grassland Reserves will form a new grassland park, covering two large areas: around Mt Cottrell and north of Little River. They will pro ...
COMPETITION AND SALT-MARSH PLANT ZONATION: STRESS
... Barton 1992). Grime’s competitor/stress tolerator/ruderal theory (hereafter CSR theory) of plant life histories classifies plant strategies as competitive, stresstolerant, or ruderal (Grime 1977, 1979). It predicts that the intensity of competition, or the degree to which the presence of neighbors r ...
... Barton 1992). Grime’s competitor/stress tolerator/ruderal theory (hereafter CSR theory) of plant life histories classifies plant strategies as competitive, stresstolerant, or ruderal (Grime 1977, 1979). It predicts that the intensity of competition, or the degree to which the presence of neighbors r ...
Bobwhite Quail Biology and Management
... In addition to longer, warmer days, the greening of foliage and flowering of plants, the bobwhite’s whistle is one of the earliest signals of the coming of spring and summer. Shortly after the first bird is heard, winter coveys slowly begin to break up and courting pairs may be observed. After initi ...
... In addition to longer, warmer days, the greening of foliage and flowering of plants, the bobwhite’s whistle is one of the earliest signals of the coming of spring and summer. Shortly after the first bird is heard, winter coveys slowly begin to break up and courting pairs may be observed. After initi ...
Legal Limits and Adaptive Management of Wildlife
... founds that the legal instruments mainly are concerned with the rational use or protection of a certain species rather than dealing with inter-relations and the sustainability of ecosystems. E.g. the motive for legal protection is based on a definition of a sustainable population which is determined ...
... founds that the legal instruments mainly are concerned with the rational use or protection of a certain species rather than dealing with inter-relations and the sustainability of ecosystems. E.g. the motive for legal protection is based on a definition of a sustainable population which is determined ...
Managing Natural Biodiversity in the Western Australian Wheatbelt
... genetic diversity - including the variation (and genetic distance) within and between populations of individual species and between different species, including taxonomic and phylogenetic diversity; species diversity - including both the number of different species and the relative abundance of each ...
... genetic diversity - including the variation (and genetic distance) within and between populations of individual species and between different species, including taxonomic and phylogenetic diversity; species diversity - including both the number of different species and the relative abundance of each ...
New Zealand coldwater springs and their biodiversity (Part 7 of 8)
... artesian springs in Queensland by Ponder & Clark (1990) were considered to be endangered because the springs they reside in had no conservation status and are threatened by pastoral activities and extraction from parent aquifers. Ponder & Clark (1990) suggested that the threats posed by stock access ...
... artesian springs in Queensland by Ponder & Clark (1990) were considered to be endangered because the springs they reside in had no conservation status and are threatened by pastoral activities and extraction from parent aquifers. Ponder & Clark (1990) suggested that the threats posed by stock access ...
Artificial Nesting Structures
... Artificial nesting structures can be used to increase wildlife reproductive success in areas where natural nest sites are unavailable or unsuitable. Although artificial nesting structures cannot replace natural nesting habitats, they can increase the number of nesting sites available in an area. Man ...
... Artificial nesting structures can be used to increase wildlife reproductive success in areas where natural nest sites are unavailable or unsuitable. Although artificial nesting structures cannot replace natural nesting habitats, they can increase the number of nesting sites available in an area. Man ...
Contribution of Greenland to the Danish Fourth National Report
... invertebrates. Walruses have a narrow food niche and mainly eat benthic bivalves, which they take from banks. Other seals primarily prey on fish. Polar bears Ursus maritimus primarily feed on ringed seals Phoca hispida and bearded seals Erignathus barbatus, but will also hunt harp seals Pagophilus g ...
... invertebrates. Walruses have a narrow food niche and mainly eat benthic bivalves, which they take from banks. Other seals primarily prey on fish. Polar bears Ursus maritimus primarily feed on ringed seals Phoca hispida and bearded seals Erignathus barbatus, but will also hunt harp seals Pagophilus g ...
Nest Predation and Brood Parasitism in Fragmented Ecosystems
... patches of deciduous riparian woodland. Patches on both river systems were embedded in one of two local contexts (buffered from agriculture by coniferous forest, or adjacent to agriculture), but the abundance of agriculture and human habitation within 1 km of each patch was highly variable. We exami ...
... patches of deciduous riparian woodland. Patches on both river systems were embedded in one of two local contexts (buffered from agriculture by coniferous forest, or adjacent to agriculture), but the abundance of agriculture and human habitation within 1 km of each patch was highly variable. We exami ...
Asian shore crab, Hemigrapsus sanguineus Overview Overview
... mean carapace width of 20 mm within two years. The reproductive period may be longer than that of native crabs, and this combined with such high fecundity may contribute to the species’ invasive success. ...
... mean carapace width of 20 mm within two years. The reproductive period may be longer than that of native crabs, and this combined with such high fecundity may contribute to the species’ invasive success. ...
REYKJAVÍK BIODIVERSITY POLICY
... but not least a diverse array of wildlife and vegetation. Numerous and varied ecosystems hosting multiple types of organisms are found within the city borders. These include rocky kelp shores, tidal mudflats, grassy wetlands, salmon rivers, nutrient-rich lakes, mossy meadows, barren heathlands of vo ...
... but not least a diverse array of wildlife and vegetation. Numerous and varied ecosystems hosting multiple types of organisms are found within the city borders. These include rocky kelp shores, tidal mudflats, grassy wetlands, salmon rivers, nutrient-rich lakes, mossy meadows, barren heathlands of vo ...
fulltext
... Species are embedded in communities in which they interact in complex ways with other species. Complexity increases even further because population structure is not only determined by intraspecific interactions but also by interspecific interactions that all change as individuals grow. Which stages ...
... Species are embedded in communities in which they interact in complex ways with other species. Complexity increases even further because population structure is not only determined by intraspecific interactions but also by interspecific interactions that all change as individuals grow. Which stages ...
FINAL S Gears COVER 4/14 - The Pew Charitable Trusts
... bountiful that eminent British biologist Thomas Huxley (1883) declared, “I believe that...all the great sea-fisheries are inexhaustible. . . nothing we can do seriously affects the number of fish.” But at the close of the twentieth century, scientists had provided unmistakable evidence that the sea ...
... bountiful that eminent British biologist Thomas Huxley (1883) declared, “I believe that...all the great sea-fisheries are inexhaustible. . . nothing we can do seriously affects the number of fish.” But at the close of the twentieth century, scientists had provided unmistakable evidence that the sea ...
Herbicidal effect of Ailanthus altissima leaves water extracts on
... The obtained results clearly showed the reduction in plant germination rate by the increased concentration of extracts. Although between groups 2 and 3 there was no significant difference in seedling emergence, the difference between other groups, especially group 1 and control group showed the stro ...
... The obtained results clearly showed the reduction in plant germination rate by the increased concentration of extracts. Although between groups 2 and 3 there was no significant difference in seedling emergence, the difference between other groups, especially group 1 and control group showed the stro ...
The amphibian decline crisis: A watershed for conservation
... major impact of habitat destruction in Europe during the mid-twentieth century, in contrast with more recent declines elsewhere (Houlahan et al., 2000). This conclusion has been contested, with the suggestion that global declines only began in the 1990s (Alford et al., 2001), but intensive arable fa ...
... major impact of habitat destruction in Europe during the mid-twentieth century, in contrast with more recent declines elsewhere (Houlahan et al., 2000). This conclusion has been contested, with the suggestion that global declines only began in the 1990s (Alford et al., 2001), but intensive arable fa ...
Full text in pdf format
... versus 6.1%). Interestingly, infection was associated with some environmental and co-infection risk factors. Individual tadpoles possessed 0 to 5 species of parasites in varying intensities. Apiosoma sp. was the most prevalent (66%) and widespread. Tadpoles infected with B. dendrobatidis had a lower ...
... versus 6.1%). Interestingly, infection was associated with some environmental and co-infection risk factors. Individual tadpoles possessed 0 to 5 species of parasites in varying intensities. Apiosoma sp. was the most prevalent (66%) and widespread. Tadpoles infected with B. dendrobatidis had a lower ...
Conservation priorities for species and ecosystems: primer (PDF
... and ecosystems (e.g. recovery plans, land-use plans). • Acting: implementing on-the-ground protection measures, including ecosystem and habitat protection and restoration, stewardship, species and population management (such as captive breeding, supplemental feeding, alien predator control), and re ...
... and ecosystems (e.g. recovery plans, land-use plans). • Acting: implementing on-the-ground protection measures, including ecosystem and habitat protection and restoration, stewardship, species and population management (such as captive breeding, supplemental feeding, alien predator control), and re ...
Invasion Ecology of Acer platanoides in an Old
... Acer platanoides (Norway maple) is an exotic tree species with invasive potential that has been described as a prolific seed producer, shade tolerant, and a strong competitor for limiting resources. It has invaded many forests in the northeastern United States and Canada, including the Washington Gr ...
... Acer platanoides (Norway maple) is an exotic tree species with invasive potential that has been described as a prolific seed producer, shade tolerant, and a strong competitor for limiting resources. It has invaded many forests in the northeastern United States and Canada, including the Washington Gr ...
WINTER BROWSING BY MOOSE AND HARES IN SUBARCTIC
... scales, browsing was mostly randomly distributed. It was concluded that forage density is a cue for moose but only at certain spatial scales. Similarly, a comparison of foraging distribution by hare and moose showed that high birch density was a key factor for both species. In spite of this, hares ...
... scales, browsing was mostly randomly distributed. It was concluded that forage density is a cue for moose but only at certain spatial scales. Similarly, a comparison of foraging distribution by hare and moose showed that high birch density was a key factor for both species. In spite of this, hares ...
Biotic and abiotic factors affecting distributions of megafauna in
... ABSTRACT: Imagery and environmental data from 7 diffuse flow hydrothermal vent sites along the Eastern Lau Spreading Center (ELSC) are used to constrain the effects of lava type, temperature, chemistry, and biological interactions on faunal distributions. Of the species with chemoautotrophic endosym ...
... ABSTRACT: Imagery and environmental data from 7 diffuse flow hydrothermal vent sites along the Eastern Lau Spreading Center (ELSC) are used to constrain the effects of lava type, temperature, chemistry, and biological interactions on faunal distributions. Of the species with chemoautotrophic endosym ...
conservation of threatened and specially protected fauna in the wild
... 5.10 Ensuring that any burning program on land managed by the Department will not lead to threatened fauna being threatened with extinction. 5.11 Establish and maintain means of identification, map records and other aids concerning relevant threatened and specially protected fauna at each Ranger sta ...
... 5.10 Ensuring that any burning program on land managed by the Department will not lead to threatened fauna being threatened with extinction. 5.11 Establish and maintain means of identification, map records and other aids concerning relevant threatened and specially protected fauna at each Ranger sta ...
Columbia River Basin - Preventing an Invasion
... quickly and is less harsh on the environment but expensive because of the effort needed to maintain exposure. — Potassium permanganate is effective at reducing or eliminating zebra mussels at high dosage rates but is also very toxic to other aquatic species. (Minnesota Dept of Natural Resources. 200 ...
... quickly and is less harsh on the environment but expensive because of the effort needed to maintain exposure. — Potassium permanganate is effective at reducing or eliminating zebra mussels at high dosage rates but is also very toxic to other aquatic species. (Minnesota Dept of Natural Resources. 200 ...
1. Invasive species and their impacts
... species (including human) health. Species include plants, seeds, eggs, spores, other propagules, and animals (e.g., mammals, reptiles, amphibians, fish, insects and other invertebrates). Often human actions have permitted the species to cross a natural or artificial barrier to dispersal (e.g., mount ...
... species (including human) health. Species include plants, seeds, eggs, spores, other propagules, and animals (e.g., mammals, reptiles, amphibians, fish, insects and other invertebrates). Often human actions have permitted the species to cross a natural or artificial barrier to dispersal (e.g., mount ...
Habitat
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A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or other type of organism.A place where a living thing lives is its habitat. It is a place where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.A habitat is made up of physical factors such as soil, moisture, range of temperature, and availability of light as well as biotic factors such as the availability of food and the presence of predators. A habitat is not necessarily a geographic area—for a parasitic organism it is the body of its host, part of the host's body such as the digestive tract, or a cell within the host's body.